High and steep slope ecological restoration construction method and device

The invention provides a high and steep slope ecological restoration construction method and device. The high and steep slope ecological restoration construction method comprises the following steps that S1, a slope surface is leveled; s2, hole channels are reserved, specifically, drilling operation of anchor rod hole channels is conducted on the slope surface at intervals, and cleaning is conducted; s3, light plastic steel is laid, specifically, the light plastic steel is manufactured and fixed to the slope surface; s4, fixing a sponge rubber rope: enabling the sponge rubber rope to penetrate through the light plastic steel and fixing; S5, filling the mixture of wood chips and bagasse: preparing the mixture of wood chips and bagasse, and filling the mixture of wood chips and bagasse into the light plastic steel; s6, preparing mixed spheres and plant seeds: performing sterile treatment on a mixture of wood chips and bagasse, inoculating fungi to prepare spheres with different sizes, selecting spherical soil b